Wind stilling ceased in the Iberian Peninsula since the 2000s
نویسندگان
چکیده
This study analyses quality controlled and homogenized near-surface wind speed series (SWS) at 87 meteorological stations distributed across Spain Portugal for 1961–2019. Multidecadal variability analysis of both mean gusts SWS confirms the first time in region cessation stilling (decline SWS) a possible weak reversal phenomenon (increase last decades, varying its onset from 1999 to 2018, depending on season variable. Different atmospheric circulation drivers are evaluated explain phenomena. Among chosen teleconnection indices, Western Mediterranean Oscillation index (WeMOi) is one that presents highest (positive) correlation with SWS, although (negative) North Atlantic winter also statistically significant (p < 0.05). Results show interannual WeMOi could exert strong influence phenomena, as it displays negative trends 1961–2010 positive ones (non-significant) 2010–2019, agreement observed trends. The use Jenkinson Collison weather type classification reveals marked certain types modulating changes (i.e., west, northwest, anticyclonic types). We proposed increase thermal stability northward shift jet stream principal causes this region. Our results improve our understanding changes, highlight importance regional assessments discern their socioeconomic environmental impacts.
منابع مشابه
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ژورنال
عنوان ژورنال: Atmospheric Research
سال: 2022
ISSN: ['1873-2895', '0169-8095']
DOI: https://doi.org/10.1016/j.atmosres.2022.106153